SOLID STATE AUDIO AMPLIFIER EMULATING A TUBE AUDIO AMPLIFIER

摘要

For the purposes of emulating the audio frequency response of a valve audio amplifier driving a loudspeaker cabinet, solid state audio amplifier means comprises an amplifier (IC1A) and gain control circuitry (Z1, Z2) adapted to exhibit a low frequency resonant peak in gain representing the fundamental resonance of the loudspeaker cabinet and a monotonic increase in gain at higher frequency associated with the voice coil inductance of the loudspeaker cabinet. The gain control circuitry may include a tune circuit creating the low frequency resonant peak and a reactance.